M1.6 earthquake 42 km ENE of Adak, Alaska

Magnitude

1.6 (ml), micro

Local time

Tue, Jun 22, 2021, 3:23 PM HADT

UTC

2021-06-23 00:23:31 UTC

Depth

2.8 km (1.8 mi), shallow

Epicenter

52.072° N, 176.103° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.41

Depth from

From location

Station coverage gap

116°

Stations used

12

After

1. 1.652 km SSW of Adak, AlaskaSun, Jun 27, 4:32 PM HADT · 1914 days ago · 35 km deep · 93 km away
2. 1.862 km E of Adak, AlaskaSun, Jun 27, 8:01 PM HADT · 1914 days ago · 18 km deep · 28 km away
3. 1.644 km ESE of Adak, AlaskaSun, Jun 27, 11:31 PM HADT · 1914 days ago · 68 km deep · 34 km away
4. 2.075 km SE of Adak, AlaskaMon, Jun 28, 2:55 AM HADT · 1914 days ago · 26 km deep · 76 km away
5. 1.524 km E of Adak, AlaskaMon, Jun 28, 10:58 AM HADT · 1914 days ago · 72 km deep · 27 km away
6. 2.084 km ESE of Adak, AlaskaThu, Jul 1, 12:41 AM HADT · 1911 days ago · 43 km deep · 70 km away
7. 3.2103 km ESE of Adak, AlaskaThu, Jul 1, 9:35 AM HADT · 1911 days ago · 35 km deep · 86 km away
8. 2.029 km NE of Adak, AlaskaFri, Jul 2, 1:16 AM HADT · 1910 days ago · 125 km deep · 14 km away
9. 1.539 km SSE of Adak, AlaskaFri, Jul 2, 11:58 AM HADT · 1910 days ago · 35 km deep · 60 km away
10. 3.760 km WSW of Atka, AlaskaFri, Jul 2, 3:09 PM HADT · 1909 days ago · 76 km deep · 77 km away
11. 1.648 km WSW of Adak, AlaskaFri, Jul 2, 8:06 PM HADT · 1909 days ago · 70 km deep · 91 km away
12. 3.099 km SW of Atka, AlaskaFri, Jul 2, 10:15 PM HADT · 1909 days ago · 24 km deep · 92 km away
13. 1.658 km W of Adak, AlaskaFri, Jul 2, 10:25 PM HADT · 1909 days ago · 115 km deep · 97 km away
14. 1.862 km SE of Adak, AlaskaSat, Jul 3, 3:15 AM HADT · 1909 days ago · 23 km deep · 65 km away
15. 2.639 km ENE of Adak, AlaskaSat, Jul 3, 5:11 AM HADT · 1909 days ago · 96 km deep · 14 km away
16. 3.446 km NNE of Adak, AlaskaSat, Jul 3, 9:01 AM HADT · 1909 days ago · 198 km deep · 33 km away
17. 1.847 km SW of Adak, AlaskaSat, Jul 3, 10:14 PM HADT · 1908 days ago · 64 km deep · 90 km away
18. 1.757 km SE of Adak, AlaskaSun, Jul 4, 3:51 AM HADT · 1908 days ago · 13 km deep · 69 km away
19. 3.085 km SSE of Adak, AlaskaSun, Jul 4, 12:25 PM HADT · 1908 days ago · 10 km deep · 96 km away
20. 3.638 km SW of Adak, AlaskaSun, Jul 4, 4:47 PM HADT · 1907 days ago · 73 km deep · 80 km away
21. 1.836 km ESE of Adak, AlaskaSun, Jul 4, 6:30 PM HADT · 1907 days ago · 61 km deep · 41 km away
22. 1.849 km S of Adak, AlaskaMon, Jul 5, 12:28 AM HADT · 1907 days ago · 26 km deep · 79 km away
23. 1.758 km SE of Adak, AlaskaMon, Jul 5, 4:29 AM HADT · 1907 days ago · 17 km deep · 65 km away
24. 3.753 km SSW of Adak, AlaskaTue, Jul 6, 12:08 AM HADT · 1906 days ago · 49 km deep · 91 km away
25. 2.332 km SE of Adak, AlaskaTue, Jul 6, 2:59 PM HADT · 1905 days ago · 50 km deep · 50 km away
26. 3.041 km S of Adak, AlaskaThu, Jul 8, 1:18 AM HADT · 1904 days ago · 36 km deep · 74 km away
27. 2.051 km S of Adak, AlaskaThu, Jul 8, 5:57 AM HADT · 1904 days ago · 21 km deep · 78 km away
28. 2.282 km SE of Adak, AlaskaThu, Jul 8, 4:58 PM HADT · 1903 days ago · 26 km deep · 75 km away
29. 1.639 km SSW of Adak, AlaskaFri, Jul 9, 7:05 AM HADT · 1903 days ago · 32 km deep · 77 km away
30. 4.689 km SW of Atka, AlaskaFri, Jul 9, 10:14 AM HADT · 1903 days ago · 52 km deep · 74 km away
31. 1.659 km SSW of Adak, AlaskaFri, Jul 9, 10:41 AM HADT · 1903 days ago · 26 km deep · 96 km away
32. 1.648 km S of Adak, AlaskaFri, Jul 9, 11:14 AM HADT · 1903 days ago · 13 km deep · 76 km away
33. 2.191 km SW of Atka, AlaskaFri, Jul 9, 2:44 PM HADT · 1902 days ago · 26 km deep · 79 km away
34. 1.5Andreanof Islands, Aleutian Islands, AlaskaSat, Jul 10, 12:09 AM HADT · 1902 days ago · 16 km deep · 81 km away
35. 1.569 km SE of Adak, AlaskaSat, Jul 10, 12:44 AM HADT · 1902 days ago · 22 km deep · 66 km away
36. 1.560 km S of Adak, AlaskaSat, Jul 10, 1:10 AM HADT · 1902 days ago · 29 km deep · 94 km away
37. 2.350 km NE of Adak, AlaskaSat, Jul 10, 3:19 AM HADT · 1902 days ago · 201 km deep · 14 km away
38. 1.782 km ESE of Adak, AlaskaSat, Jul 10, 6:24 AM HADT · 1902 days ago · 26 km deep · 71 km away
39. 1.580 km ESE of Adak, AlaskaSat, Jul 10, 6:25 AM HADT · 1902 days ago · 25 km deep · 69 km away
40. 5.049 km ESE of Adak, AlaskaSun, Jul 11, 8:04 AM HADT · 1901 days ago · 58 km deep · 35 km away · felt by 3
41. 2.955 km ESE of Adak, AlaskaSun, Jul 11, 8:14 AM HADT · 1901 days ago · 44 km deep · 45 km away
42. 2.462 km ESE of Adak, AlaskaSun, Jul 11, 9:44 AM HADT · 1901 days ago · 32 km deep · 55 km away
43. 2.653 km ESE of Adak, AlaskaSun, Jul 11, 1:24 PM HADT · 1900 days ago · 43 km deep · 43 km away
44. 3.059 km ESE of Adak, AlaskaMon, Jul 12, 3:27 AM HADT · 1900 days ago · 38 km deep · 52 km away
45. 2.857 km ESE of Adak, AlaskaMon, Jul 12, 6:14 AM HADT · 1900 days ago · 38 km deep · 50 km away
46. 1.858 km SSE of Adak, AlaskaMon, Jul 12, 6:19 AM HADT · 1900 days ago · 18 km deep · 74 km away
47. 1.544 km SSE of Adak, AlaskaMon, Jul 12, 10:38 AM HADT · 1900 days ago · 32 km deep · 66 km away
48. 2.075 km ENE of Adak, AlaskaTue, Jul 13, 2:07 AM HADT · 1899 days ago · 94 km deep · 34 km away
49. 1.944 km E of Adak, AlaskaTue, Jul 13, 3:27 AM HADT · 1899 days ago · 125 km deep · 15 km away
50. 1.853 km ENE of Adak, AlaskaTue, Jul 13, 8:57 AM HADT · 1899 days ago · 146 km deep · 16 km away
51. 1.654 km ENE of Adak, AlaskaTue, Jul 13, 7:09 PM HADT · 1898 days ago · 170 km deep · 14 km away
52. 1.596 km SE of Adak, AlaskaWed, Jul 14, 2:46 AM HADT · 1898 days ago · 6 km deep · 91 km away
53. 1.742 km ENE of Adak, AlaskaWed, Jul 14, 3:20 AM HADT · 1898 days ago · 4 km deep · 1 km away
54. 1.782 km SE of Adak, AlaskaWed, Jul 14, 4:14 AM HADT · 1898 days ago · 22 km deep · 77 km away
55. 1.571 km WSW of Atka, AlaskaThu, Jul 15, 3:21 AM HADT · 1897 days ago · 67 km deep · 72 km away
56. 3.380 km E of Adak, AlaskaThu, Jul 15, 7:49 PM HADT · 1896 days ago · 10 km deep · 48 km away
57. 2.012 km W of Adak, AlaskaThu, Jul 15, 10:36 PM HADT · 1896 days ago · 81 km deep · 53 km away
58. 1.858 km WSW of Atka, AlaskaFri, Jul 16, 6:55 AM HADT · 1896 days ago · 73 km deep · 74 km away
59. 1.847 km E of Adak, AlaskaFri, Jul 16, 5:59 PM HADT · 1895 days ago · 155 km deep · 18 km away
60. 2.460 km NE of Adak, AlaskaFri, Jul 16, 7:18 PM HADT · 1895 days ago · 183 km deep · 23 km away

The first 60 of 165.

Before

1. 1.694 km ESE of Adak, AlaskaFri, Jun 18, 2:54 PM HADT · 1923 days ago · 36 km deep · 73 km away
2. 1.754 km SSE of Adak, AlaskaFri, Jun 18, 5:54 AM HADT · 1924 days ago · 27 km deep · 79 km away
3. 2.193 km SW of Atka, AlaskaWed, Jun 16, 12:07 AM HADT · 1926 days ago · 24 km deep · 98 km away
4. 1.640 km ENE of Adak, AlaskaSat, Jun 12, 6:43 AM HADT · 1930 days ago · 154 km deep · 2 km away
5. 2.873 km ESE of Adak, AlaskaFri, Jun 11, 9:28 AM HADT · 1931 days ago · 70 km deep · 51 km away
6. 2.158 km W of Adak, AlaskaThu, Jun 10, 9:48 PM HADT · 1931 days ago · 88 km deep · 96 km away
7. 2.754 km WSW of Adak, AlaskaThu, Jun 10, 9:48 PM HADT · 1931 days ago · 96 km deep · 96 km away
8. 2.039 km ESE of Adak, AlaskaMon, May 31, 12:48 AM HADT · 1942 days ago · 62 km deep · 31 km away
9. 1.750 km W of Adak, AlaskaSun, May 30, 7:01 PM HADT · 1942 days ago · 71 km deep · 92 km away
10. 4.246 km SW of Adak, AlaskaSun, May 30, 1:56 AM HADT · 1943 days ago · 48 km deep · 88 km away
11. 2.744 km E of Adak, AlaskaSat, May 29, 9:58 AM HADT · 1944 days ago · 69 km deep · 29 km away
12. 2.984 km E of Adak, AlaskaWed, May 26, 2:50 AM HADT · 1947 days ago · 238 km deep · 50 km away
13. 1.638 km NE of Adak, AlaskaTue, May 25, 7:48 PM HADT · 1947 days ago · 8 km deep · 10 km away
14. 1.637 km NE of Adak, AlaskaTue, May 25, 5:25 PM HADT · 1947 days ago · 10 km deep · 10 km away
15. 1.539 km NE of Adak, AlaskaTue, May 25, 4:30 PM HADT · 1947 days ago · 10 km deep · 8 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91288241. Read Thu, Sep 24, 2026, 9:46 AM UTC.